Re: [CAD_CAM_EDM_DRO] tool change

Ken,

First I need to know what type tool changer you are going to use. I have
seen three types.

One type is a pneumatic manual changer. The second type is where the tools
are all lined up in a row. The third is where the tools are in circular
changer.

First, there are various ways of setting the tool length. Some may all be
the same length or you can use a tool length table.

The position is the next challenge. If the tools are lined up in a row, you
will need to where the next tool is after first putting away the previous
tool. Once you select the tool and insert it with the pneumatic changer and
adjust for tool length, the controller should move the tool to the last
previous position or to the next cutting position. The circular changer is
easier. First you put away the current tool and then select the next tool
and adjust for tool length.

Bob Campbell

----- Original Message -----
From: "mszollar" <kenargo@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Friday, August 30, 2002 1:38 PM
Subject: [CAD_CAM_EDM_DRO] tool change


> I have a technical question; using CNC what is the best way to
> execute a tool change?
>
> In CNC programs the 1st tool is very easy because you can adjust the
> tool to the part then move to 0,0,0. A 2nd tool change is different
> because the new tool may be longer, shorter, etc. Additionally you
> would not want to change Z (or any other axis) in the process of the
> tool change (or certainly you would want the axis to read the same
> before and after)
>
> Thanks,
> Ken
>
>
>
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